Wagenaar, T. C., & Babbie, E. (1989). Practicing social research (5th ed.). Wadsworth.
芝加哥风格引文Wagenaar, Theodore C., 与 Earl Babbie. Practicing Social Research. 5th ed. California: Wadsworth, 1989.
MLA引文Wagenaar, Theodore C., 与 Earl Babbie. Practicing Social Research. 5th ed. Wadsworth, 1989.
警告：这些引文格式不一定是100％准确.